Mosler Lofts

Seattle, Washington






Located across from the iconic Seattle Center, Mosler Lofts is Seattle’s first LEED Silver and “BuiltGreen” condominium. This 12-story building exemplifies the Pacific Northwest’s leadership in sustainable building practices. The structural design contributed to sustainability with an optimized structural layout and reduced structural material quantities.

The structural frame consists of cast-in-place concrete with post-tensioned slabs and a shear wall core. Structural steel was used at the penthouse level to accommodate dramatic roof geometry and allow relocation of columns and major load points.

The Mosler Lofts development features many green features, including high-efficiency appliances, high-efficiency elevators, use of certified wood products, CO2 monitoring, low VOC paints, low-flow plumbing fixtures, 30% potable water savings over a code-compliant building, high-performance windows, natural day-lighting, and dual flush toilets. The green roof is intended to insulate the building, filter rainwater and provide outdoor space for residents.


LEED Silver/
BuiltGreen Rated

U.S. Green Building Council